Question

7. The number of solutions of log base 2 (x - 1) = 2 log base 2 (x - 3) is
(a) 2
(b) 1
(c) 6
(d) 7
​

Answer 1

Have a look step-by-step to the given solution above and keep observing till the end. Process is very simple right? So, the best idea will be going through all the examples of your book first and after that you can handle exercises easily. Logarithm's basic concept and common type questions should be pointed out first and after that start exploring your own logical solution for every questions to the exercises. Think like you are the author, solving the exercises systematically.

According to the solution you are seeing above, the correct option is option (a), which represents there are two solutions of the given question.